The answer to 'how to clean shower' is to clean your shower regularly to prevent buildup of soap scum, hard water stains, and mold. Start by wiping down the walls and floor with a squeegee or microfiber cloth to remove any loose dirt or debris. Then, use a mild abrasive cleaner or a mixture of warm water and white vinegar to scrub the surfaces, paying extra attention to the corners and grout lines. Rinse thoroughly and dry with a clean towel. For tougher stains, you may need to use a specialized shower cleaner or let the solution sit for a few minutes before scrubbing.
It's recommended to clean your shower at least once a week, or more often if you notice a buildup of grime. If you have hard water or persistent mold issues, you may need to clean your shower more frequently. If you're unable to get your shower clean with DIY methods, it's best to call a professional plumber to assess the situation and provide a more thorough cleaning.